There is radio (online and in the ether), there are alternative platforms (e.g., Bandcamp), concerts and other live venues, (second hand) physical media (e.g., CDs or vinyl), open access music, etcetera.

On top of all that there is the big middle finger of 'piracy' if you are so inclined. For many this is a morally acceptable alternative to a rotten system, for others it may remain an imponderable transgression of law and or ethics — either way, it is a viable alternative in addition to the above.